Originally posted by Victor Beard@Mar 29 2005, 01:08 AMCould someone describe a lambda circuit and tell me what their used for, any information would be very much appeciated from whom ever could speak on this topic,thank you very much Victor Beard.

Originally posted by Victor Beard@Apr 1 2005, 07:00 PMYes, this is an auto-motive question I would very much appreciate your input, thank you very much .

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The way a lambda sensor works is by measuring the oxygen content in the exhaust stream of your car. The way it does this is by using bymetals and when the oxygen level is high the temperture will be high and when the oxygen level is low the temperture will be low. The way the car knows this is that it sends a .5 volt reference signal to the oxygen sensor from the ecu and when the voltage drops below the .5 volts it knows that the oxygen is high and when the .5 reference goes above the .5 volt reference the oxygen level is low. This will allow the ecu to monitor this change and adjust the air/fuel ratio from its preset values which are to try to obtain a constant 14.7 to 1 air fuel ratio at all times.

Originally posted by volvoman@Apr 2 2005, 11:14 AMThe way a lambda sensor works is by measuring the oxygen content in the exhaust stream of your car. The way it does this is by using bymetals and when the oxygen level is high the temperture will be high and when the oxygen level is low the temperture will be low. The way the car knows this is that it sends a .5 volt reference signal to the oxygen sensor from the ecu and when the voltage drops below the .5 volts it knows that the oxygen is high and when the .5 reference goes above the .5 volt reference the oxygen level is low. This will allow the ecu to monitor this change and adjust the air/fuel ratio from its preset values which are to try to obtain a constant 14.7 to 1 air fuel ratio at all times.

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The information that you sent satisfies my curiosity for know ,thanks much for putting a bright light on this subject,Would you be willing to talk about the airflow,mass air,engine coolant or manifold pressure sensors again your input would be appreciated.

Originally posted by Victor Beard@Apr 2 2005, 01:52 PMThe information that you sent satisfies my curiosity for know ,thanks much for putting a bright light on this subject,Would you be willing to talk about the airflow,mass air,engine coolant or manifold pressure sensors again your input would be appreciated.